It’s not too late to reduce the damage caused by global warming, but it will take drastic reductions in greenhouse gas emissions, says Jonathan Foley, executive director of Project Drawdown, a San Francisco–based nonprofit research organization that identifies ways to reduce carbon emissions. Assumptions: Household uses 10,700 kilowatt hours of electricity per year and 100 percent of electricity comes from a clean energy provider or from solar panels According to Project Drawdown, adopting a vegetarian diet can also cut emissions, by about 63 percent, while going vegan can reduce them by as much as 70 percent.